High Pressure X-Ray Diffraction Study of a Grossular–Andradite Solid Solution and the Bulk Modulus Variation along this Solid Solution
FAN Da-Wei1**, WEI Shu-Yi1,3, LIU Jing2, LI Yan-Chun2, XIE Hong-Sen1
1 Laboratory for Study of the Earth's Interior and Geofluids, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002 2 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 3 Graduate University of the Chinese Academy of Sciences, Beijing 100049
High Pressure X-Ray Diffraction Study of a Grossular–Andradite Solid Solution and the Bulk Modulus Variation along this Solid Solution
FAN Da-Wei1**, WEI Shu-Yi1,3, LIU Jing2, LI Yan-Chun2, XIE Hong-Sen1
1 Laboratory for Study of the Earth's Interior and Geofluids, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002 2 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 3 Graduate University of the Chinese Academy of Sciences, Beijing 100049
摘要In-situ angle-dispersive x-ray diffraction measurements on three samples of Gr14An84, Gr34An64 and Gr63An34 were performed by using a diamond anvil cell instrument with synchrotron radiation at the Beijing Synchrotron Radiation Facility at up to 13.7 GPa. A least−square fit of the pressure-volume to the Birch–Murnaghan equation of state, when fixed K'0=4.0 yields bulk modulus values of K0=166±2, 168±3, 173±2 GPa for Gr14An84, Gr34An64 and Gr63An34, respectively. The bulk modulus increases from 166±2 GPa for Gr14An84 and to 173±2 GPa for Gr63An34 with the increasing An content. Furthermore, by linear interpolation, the bulk modulus of the Gr−An binary system as a function of An content can be expressed as K0(GPa) =176.9(9)−0.12(1)XAn (R2=0.987).
Abstract：In-situ angle-dispersive x-ray diffraction measurements on three samples of Gr14An84, Gr34An64 and Gr63An34 were performed by using a diamond anvil cell instrument with synchrotron radiation at the Beijing Synchrotron Radiation Facility at up to 13.7 GPa. A least−square fit of the pressure-volume to the Birch–Murnaghan equation of state, when fixed K'0=4.0 yields bulk modulus values of K0=166±2, 168±3, 173±2 GPa for Gr14An84, Gr34An64 and Gr63An34, respectively. The bulk modulus increases from 166±2 GPa for Gr14An84 and to 173±2 GPa for Gr63An34 with the increasing An content. Furthermore, by linear interpolation, the bulk modulus of the Gr−An binary system as a function of An content can be expressed as K0(GPa) =176.9(9)−0.12(1)XAn (R2=0.987).
FAN Da-Wei**;WEI Shu-Yi;LIU Jing;LI Yan-Chun;XIE Hong-Sen
. High Pressure X-Ray Diffraction Study of a Grossular–Andradite Solid Solution and the Bulk Modulus Variation along this Solid Solution[J]. 中国物理快报, 2011, 28(7): 76101-076101.
FAN Da-Wei**, WEI Shu-Yi, LIU Jing, LI Yan-Chun, XIE Hong-Sen
. High Pressure X-Ray Diffraction Study of a Grossular–Andradite Solid Solution and the Bulk Modulus Variation along this Solid Solution. Chin. Phys. Lett., 2011, 28(7): 76101-076101.
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